CN1776828A - Comprehensive control shielding cable for railway locomotive - Google Patents
Comprehensive control shielding cable for railway locomotive Download PDFInfo
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- CN1776828A CN1776828A CN 200510122895 CN200510122895A CN1776828A CN 1776828 A CN1776828 A CN 1776828A CN 200510122895 CN200510122895 CN 200510122895 CN 200510122895 A CN200510122895 A CN 200510122895A CN 1776828 A CN1776828 A CN 1776828A
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Abstract
Being applicable to transmission of audio signal and electric power inside rail rolling stocks, the disclosed cable includes following parts: a set of audio line lapped by first lapping layer; a set of power line around audio lines and lapped by second lapping layer; jacket layer located outside the second lapping layer; first and second shielding layers are setup outside the first and second lapping layers respectively; number of audio lines is 2-7 cores, and number of power line is 5-12 cores. Advantages are: transmission of both of electric power and audio signal so as to save cost, first and second shielding layers for preventing interference on audio signal from electric field and magnetic field inside and outside cable, soft, fire retardant and easy distinguishable.
Description
Technical field
The present invention relates to a kind of comprehensive control shielding cable for railway locomotive, be used for the interior audio signal of rail vehicles and the transmission of electric power, belong to the shielded type cable technical field.
Background technology
Development along with information technology, aspect railway signal control system, used a large amount of signals, for example audio signal, vision signal, control signal or the like, derived the cable that is used to transmit unlike signal thereupon, because signal cable can produce a large amount of and stronger electromagnetic wave, the mutual interference of electromagnetic wave phase influences the laser propagation effect of signal; Add that the electric field that power line produced, magnetic field that the railway system uses also can produce interference to signal, the distortion of priming signal transmission.So for the shielded type cable that railway locomotive is used, it is very important obtaining desirable shield effectiveness.
In order to obtain the shield effectiveness of relative ideal, promptly prevent to belong to a cable or title and gather the phenomenon that occurs disturbing mutually in the cable between power circuit in a cable, the signal line, therefore common way be with the circuit employing of the circuit of transferring electric power and transmission signals separately lay road, promptly lay respectively, laying respectively of the most typical as power circuit and voice band line, and to separately the comparatively exquisite shielding measure of circuit employing.The obvious deficiency that this way is brought is: cause the increase of laid down cost and the increase of artificial input amount, lack economy.
Given this, the cable of using for present railway locomotive that is used for transmitting audio signal separately, if can be able to its transmission line with transferring electric power be compatible with a cable original and differently, can yet be regarded as so is a kind ofly to save laid down cost and lay the artificial useful act that embodies the saving construction investment of using.But be faced with the following factor that must eliminate, the one, need guarantee that the electric field of power line, magnetic field do not disturb audio signal, promptly prevent to disturb in the cable; The 2nd, prevent that extraneous stronger electric field, magnetic field from disturbing audio signal, prevent that promptly cable is outer to disturbing in the cable; The 3rd, prevent electric field, the magnetic field interference of other signal to external world in the cable, promptly prevent in the cable the outer interference of cable.
Chinese patent application number 01234020.0 discloses a kind of composite type sheathed shielded cable, it is characterized in that the combination cable be made up of many control cable, feed cable, vision cable, and the cable of this structure is mainly used in ground control system.Its shortcoming is: 1, owing to adopted the shielding of aluminium strip armouring, cause the cable flexibility relatively poor; 2, shielding measure is not taked in cable inside, therefore, do not solve the electric field of power line generation of cable itself and magnetic field interference problem to the signal of cable own though cable has solved external electrical field and magnetic field to the interference of cable and the cable interference problem of signal to external world.
Have, Chinese patent Granted publication CN1352799A discloses a kind of balanced transmission shielded cable again, and the technical problem that it solved is intended to satisfy the transmission of the Low Voltage Differential Signal of twisted-pair feeder.Claim, specification and accompanying drawing thereof by this patent are as can be known, this balanced transmission shielded cable has two-layer shielded conductor, with the power line of shielding in inboard shielded conductor and the twist paired signal line of two shielded conductors formation ring-type, this cable is used for the signal and the electric power of carry high frequency, and this cable does not have anti-flammability and complex structure; This cable is placed on twisted pair wire between the two-layer shielding, though can avoid the interference and the extraneous interference than weak electric field and magnetic field of part in cable internal electric field and magnetic field, can not stop the extraneous stronger electric field and the interference problem in magnetic field.
Also have, Chinese patent grant number CN2638206Y relates to a kind of moving metal shielded flexible cable that is used for the colliery, and the problem of its solution is the fail safe of cable.It monitors that lead only plays signal monitoring, is not transmission of audio signals, and cable does not solve cable interference to external world itself simultaneously.
Chinese patent application number 01266687.4 disclosed a kind of shield type comprehensive wiring cable is arranged again.Comprise that line is to, insulating barrier, screen and oversheath, line at cable externally and outside the cable core is equipped with screen, line to screen adopt aluminium foil to each line to longitudinal lapping, the cable core screen is to be provided with aluminium foil outside band, is provided with drain wire between aluminium foil and the insulating barrier.This cable can only be done signal and transmit, and can not be used as electric power transfer.
Summary of the invention
Task of the present invention is to provide a kind of electric field of cable internal power cord and magnetic field of not only can preventing that audio signal is disturbed, and can prevent that external electrical field and magnetic field from disturbing audio signal, and then the electric field, magnetic field that also can avoid cable itself to external world the shield effectiveness that disturbs of signal good, can save laid down cost and embody economy, collect transmitting audio signal and electric power in the comprehensive control shielding cable for railway locomotive of a cable.
Task of the present invention is finished like this, a kind of comprehensive control shielding cable for railway locomotive, it comprise one group by the first lapping layer 4a wrapped together the tone frequency channel wire that is used for transmitting audio signal 2 and one group be centered around around the tone frequency channel wire 2 and by the second lapping layer 4b wrapped together the power line that is used for transferring electric power 1 and be positioned at the outer restrictive coating 6 of the second lapping layer 4b, the outside of described first, second lapping layer 4a, 4b is respectively equipped with first, second screen 5a, 5b; The quantity of described tone frequency channel wire 2 is 2～7 cores; The quantity of described power line 1 is 5～12 cores.
The material that described tone frequency channel wire 2 of the present invention comprises first conductor 21 and overlayed on outer first insulating barrier, 22, the first insulating barriers 22 of first conductor 21 is any one in flame-proof polyvinyl chloride or flame-retardant low-smoke halogen-free polyolefin or the flame-proof cross-linking polyolefin.
The material that power line 1 of the present invention comprises second conductor 11 and overlayed on outer second insulating barrier, 12, the second insulating barriers 12 of second conductor 11 is any one in flame-proof polyvinyl chloride or flame-retardant low-smoke halogen-free polyolefin or the flame-proof cross-linking polyolefin.
First insulating barrier 22 of the present invention has the different colours that is used to distinguish or is printed on the Digital ID that is used to distinguish.
Second insulating barrier 12 of the present invention has the different colours that is used to distinguish or is printed on the Digital ID that is used to distinguish.
Be provided with filler 3 in the spatial domain between one group of tone frequency channel wire 2 of the present invention and the one group of power line 1, the material of this filler 3 is any one in polypropylene fibre and the mineral wool rope.
The material of first, second screen 5a of the present invention, 5b is any one in braiding bare copper wire or tinned copper wire or the vertical alclad paper tinsel, and wherein, the diameter of braiding copper wire is 0.1～0.3mm, and the thickness of aluminium foil is 0.05～0.15mm.
One of advantage of the present invention can transferring electric power, again can transmitting audio signal, and can a cable lay and save cost; Two, being provided with of first, second screen 5a, 5b can prevent to come from the various interference to audio signal of the inside and outside electric field of cable, magnetic field; In addition, also have be easy to distinguish, soft, fire-retardant advantage.
Description of drawings
Fig. 1 is the sectional view of the example structure that the present invention exemplified.
Fig. 2 is the sectional view of another example structure that the present invention exemplified.
Fig. 3 is the also sectional view of an example structure that the present invention exemplified.
Fig. 4 is the sectional view of another example structure that the present invention exemplified.Among the figure: 1. power line; 11. second conductor; 12. second insulating barrier; 2. tone frequency channel wire; 21. first conductor; 22. first insulating barrier; 3. filler; 4a. first lapping layer; 4b. second lapping layer; 5a. first screen; 5b. secondary shielding layer; 6. restrictive coating.
Specific implementation method
By the following DETAILED DESCRIPTION OF THE PREFERRED that accompanying drawing is represented, can be expressly understood the present invention and see the features and advantages of the present invention, but the following examples do not constitute the restriction to technical solution of the present invention.
Embodiment 1:
Ask for an interview Fig. 1, after tone frequency channel wire that one group of quantity is 3 (3 cores) 2 is stranded, outside wrapped with nonwoven fabrics or polyester twining package tape as the first lapping layer 4a, constitute the first screen 5a in the outside of the first lapping layer 4a with copper wire braid shielded or the wrapped shielding of aluminium foil again, so just can separate with the power line 1 and the external world well, avoid the interference of electric field, magnetic field and external electrical field, the magnetic field of power line 1 effectively the audio transmission signal.Wherein, adopting diameters as first conductor 21 of tone frequency channel wire 2 is the annealing bare copper wire of 0.1～1mm or tinned copper wire is stranded forms, the diameter of braiding copper wire is 0.1～0.3mm, the thickness of aluminium foil is 0.05～0.15mm, is to have the color of being convenient to distinguish or be printed on the Arabic numerals mark that is used to distinguish and overlay on first conductor, the 21 first outer insulating barriers 22.With the present embodiment is example, and the color of first insulating barrier 22 of 3 tone frequency channel wires 2 can be red, yellow, blue or black, white, green or the like; When stamping figure notation outside first insulating barrier 22 at 3 tone frequency channel wires 2, stamp 1,2,3 or 0,1,2 so and get final product.Certainly, different colors can be selected one with different Digital IDs, also can same tool, that is: and not only can give different colors, but also can stamp Digital ID simultaneously first insulating barrier 22 of 3 tone frequency channel wires 2.
The power line 1 that one group of quantity is 6 (6 cores) be arranged in one group of tone frequency channel wire 2 around, further say, be arranged in the first screen 5a around, every power line 1 comprises that it is the annealing bare copper wire of 0.1～1mm or tinned copper wire is stranded forms that second conductor, 11, the second conductors 11 that are coated with second insulating barrier 12 similarly adopt diameter.Because one group of power line 1 that present embodiment is selected is 6, still be not enough to adjoint each other land be centered around the first screen 5a around, be to have neutral between the power line 1, the material that therefore adopts respective numbers is that the filler 3 of polypropylene fibre and mineral wool rope is filled.Wrapped at this group power line 1 and the filler 3 external application nonwoven fabrics or the polyester twining package tape that are added as the second lapping layer 4b, be that (thickness is the secondary shielding layer 5b of 0.05～0.15mm) wrapped shielding formation for the copper wire braid shielded of 0.1～0.3mm or aluminium foil in second lapping layer 4b outside with diameter again.For one group of total quantity be the color of the second outer insulating barrier 12 of 6 second conductor 11 of power line 1 and figure notation give with aforesaid be similar to first insulating barrier, 22 described contents and reason, so the applicant is no longer superfluous and.Only be because the quantity of power line 1 more than the quantity of tone frequency channel wire 2, therefore, increases for the color category of second insulating barrier 12 is corresponding with figure notation.Need to prove,, also stop electric field and the magnetic field interference of signal to external world in the cable simultaneously effectively because the setting of secondary shielding layer 5b can stop extraneous stronger electric field and magnetic field to the interference of audio signal effectively.Therefore, it is self-evident adopting the shield effectiveness that dual shield brought.
Adopting the used equipment of conventional cable processing industry to squeeze multiple material outside secondary shielding layer 5b can be that flame-proof polyvinyl chloride also can be that the flame-retardant low-smoke halogen-free polyolefin can also be the polyolefinic restrictive coating 6 of flame-proof cross-linking.
, except aforesaid advantage, also have and be easy to distinguish every tone frequency channel wire 2 and power line 1 by the resulting shielded type cable of present embodiment, give construction, safeguard and bring convenience; And the material of described first, second insulating barrier 22,12 is chosen as identical with restrictive coating 6, so flame retardant effect is ultimate attainment; The flexibility that is shown on the whole is also apparent in addition knows.
Embodiment 2:
Ask for an interview Fig. 2, adopted 3 (3 core) tone frequency channel wires 2 and 9 (9 core) power lines 1, removed filler 3, all the other are with embodiment 1.
Embodiment 3:
Ask for an interview Fig. 3, adopted 4 (4 core) tone frequency channel wires 2 and 7 (7 core) power lines 1, be provided with filler 3 between 7 power lines 1 in the neutral (territory) that 4 tone frequency channel wires 2 are occurred and in the spatial domain that is produced, all the other are with embodiment 1.
Embodiment 4:
Ask for an interview Fig. 4, adopted 7 (7 core) tone frequency channel wires 2 and 11 (core) power lines 1, all the other together
Claims (10)
1, a kind of comprehensive control shielding cable for railway locomotive, it comprise one group by first lapping layer (4a) wrapped together the tone frequency channel wire that is used for transmitting audio signal (2) and one group be centered around tone frequency channel wire (2) all around and by second lapping layer (4b) wrapped together the power line that is used for transferring electric power (1) and be positioned at the outer restrictive coating (6) of second lapping layer (4b), it is characterized in that the outside of described first, second lapping layer (4a), (4b) is respectively equipped with first, second screen (5a), (5b); The quantity of described tone frequency channel wire (2) is 2～7 cores; The quantity of described power line (1) is 5～12 cores.
2, comprehensive control shielding cable for railway locomotive according to claim 1, it is characterized in that described tone frequency channel wire (2) comprises first conductor (21) and overlayed on outer first insulating barrier (22) of first conductor (21), the material of first insulating barrier (22) is any one in flame-proof polyvinyl chloride or flame-retardant low-smoke halogen-free polyolefin or the flame-proof cross-linking polyolefin.
3, comprehensive control shielding cable for railway locomotive according to claim 1, it is characterized in that described power line (1) comprises second conductor (11) and overlayed on outer second insulating barrier (12) of second conductor (11), the material of second insulating barrier (12) is any one in flame-proof polyvinyl chloride or flame-retardant low-smoke halogen-free polyolefin or the flame-proof cross-linking polyolefin.
4, comprehensive control shielding cable for railway locomotive according to claim 2 is characterized in that described first insulating barrier (22) has the different colours that is used to distinguish or is printed on the Digital ID that is used to distinguish.
5, comprehensive control shielding cable for railway locomotive according to claim 3 is characterized in that described second insulating barrier (12) has the different colours that is used to distinguish or is printed on the Digital ID that is used to distinguish.
6, comprehensive control shielding cable for railway locomotive according to claim 2 is characterized in that described first conductor (21) is annealing bare copper wire or the stranded conductor that forms of any one copper wire in the tinned copper wire by diameter 0.1～1mm.
7, comprehensive control shielding cable for railway locomotive according to claim 3 is characterized in that described second conductor (11) is annealing bare copper wire or the stranded conductor that forms of any one copper wire in the tinned copper wire by diameter 0.1～1mm.
8, comprehensive control shielding cable for railway locomotive according to claim 1, it is characterized in that being provided with filler (3) in the spatial domain between described one group of tone frequency channel wire (2) and the one group of power line (1), the material of this filler (3) is any one in polypropylene fibre and the mineral wool rope.
9, comprehensive control shielding cable for railway locomotive according to claim 1, the material that it is characterized in that described first, second screen (5a), (5b) is any one in braiding bare copper wire or tinned copper wire or the vertical alclad paper tinsel, wherein, the diameter of braiding copper wire is 0.1～0.3mm, and the thickness of aluminium foil is 0.05～0.15mm.
10, comprehensive control shielding cable for railway locomotive according to claim 1 is characterized in that described restrictive coating (6) is any one in flame-proof polyvinyl chloride or flame-retardant low-smoke halogen-free polyolefin or the flame-proof cross-linking polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122895 CN1776828A (en) | 2005-12-04 | 2005-12-04 | Comprehensive control shielding cable for railway locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122895 CN1776828A (en) | 2005-12-04 | 2005-12-04 | Comprehensive control shielding cable for railway locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1776828A true CN1776828A (en) | 2006-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510122895 Pending CN1776828A (en) | 2005-12-04 | 2005-12-04 | Comprehensive control shielding cable for railway locomotive |
Country Status (1)
| Country | Link |
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| CN (1) | CN1776828A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162629B (en) * | 2007-10-30 | 2010-11-17 | 东莞市日新传导科技股份有限公司 | Method for manufacturing shielding cable for military industry equipment |
| CN102682891A (en) * | 2012-05-04 | 2012-09-19 | 常熟泓淋电线电缆有限公司 | Separable photovoltaic cable with multiple cores parallelly distributed |
| CN103680696A (en) * | 2013-12-18 | 2014-03-26 | 无锡江南电缆有限公司 | Five-core composite cable with control wire core pairs |
| CN103714883A (en) * | 2012-09-29 | 2014-04-09 | 启东恒瑞防爆通讯电气有限公司 | Explosion-proof cable |
| CN103794267A (en) * | 2014-02-27 | 2014-05-14 | 苏州科宝光电科技有限公司 | Cable for connecting mobile ink-jet printer nozzle |
| CN105321599A (en) * | 2015-10-28 | 2016-02-10 | 无锡市长城电线电缆有限公司 | Power and control signal composite cable |
| CN112117046A (en) * | 2020-09-23 | 2020-12-22 | 昆明昆宝电线电缆制造有限公司 | Aluminum-clad steel core super heat-resistant aluminum alloy overhead conductor |
| CN113421708A (en) * | 2021-06-18 | 2021-09-21 | 浙江跨越电缆有限公司 | High-grade sound box unvoiced transmission cable |
-
2005
- 2005-12-04 CN CN 200510122895 patent/CN1776828A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162629B (en) * | 2007-10-30 | 2010-11-17 | 东莞市日新传导科技股份有限公司 | Method for manufacturing shielding cable for military industry equipment |
| CN102682891A (en) * | 2012-05-04 | 2012-09-19 | 常熟泓淋电线电缆有限公司 | Separable photovoltaic cable with multiple cores parallelly distributed |
| CN103714883A (en) * | 2012-09-29 | 2014-04-09 | 启东恒瑞防爆通讯电气有限公司 | Explosion-proof cable |
| CN103680696A (en) * | 2013-12-18 | 2014-03-26 | 无锡江南电缆有限公司 | Five-core composite cable with control wire core pairs |
| CN103794267A (en) * | 2014-02-27 | 2014-05-14 | 苏州科宝光电科技有限公司 | Cable for connecting mobile ink-jet printer nozzle |
| CN103794267B (en) * | 2014-02-27 | 2016-04-27 | 苏州科宝光电科技有限公司 | A kind of Mobile code-spraying machine shower nozzle cable for connecting |
| CN105321599A (en) * | 2015-10-28 | 2016-02-10 | 无锡市长城电线电缆有限公司 | Power and control signal composite cable |
| CN112117046A (en) * | 2020-09-23 | 2020-12-22 | 昆明昆宝电线电缆制造有限公司 | Aluminum-clad steel core super heat-resistant aluminum alloy overhead conductor |
| CN112117046B (en) * | 2020-09-23 | 2022-06-17 | 昆明昆宝电线电缆制造有限公司 | Aluminium-clad steel core super heat-resistant aluminium alloy overhead conductor |
| CN113421708A (en) * | 2021-06-18 | 2021-09-21 | 浙江跨越电缆有限公司 | High-grade sound box unvoiced transmission cable |
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